Transaction

{
  "update_price_feed": {
    "vaa": "UE5BVQEAAAADuAEAAAAHDQC+Vz3PE42FP62mTM1VlOGrInFhoS1UD1FpXER2jDHqLTGRAUEUDY0e1rg+… (1,748 chars)"
  }
}